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/// <reference path="helpers.d.ts" />
import * as ESTree from "estree";
import { JSONSchema4 } from "json-schema";
export namespace AST {
type TokenType =
| "Boolean"
| "Null"
| "Identifier"
| "Keyword"
| "Punctuator"
| "JSXIdentifier"
| "JSXText"
| "Numeric"
| "String"
| "RegularExpression";
interface Token {
type: TokenType;
value: string;
range: Range;
loc: SourceLocation;
}
interface SourceLocation {
start: ESTree.Position;
end: ESTree.Position;
}
type Range = [number, number];
interface Program extends ESTree.Program {
comments: ESTree.Comment[];
tokens: Token[];
loc: SourceLocation;
range: Range;
}
}
export namespace Scope {
interface ScopeManager {
scopes: Scope[];
globalScope: Scope | null;
acquire(node: ESTree.Node, inner?: boolean): Scope | null;
getDeclaredVariables(node: ESTree.Node): Variable[];
}
interface Scope {
type:
| "block"
| "catch"
| "class"
| "for"
| "function"
| "function-expression-name"
| "global"
| "module"
| "switch"
| "with"
| "TDZ";
isStrict: boolean;
upper: Scope | null;
childScopes: Scope[];
variableScope: Scope;
block: ESTree.Node;
variables: Variable[];
set: Map<string, Variable>;
references: Reference[];
through: Reference[];
functionExpressionScope: boolean;
}
interface Variable {
name: string;
scope: Scope;
identifiers: ESTree.Identifier[];
references: Reference[];
defs: Definition[];
}
interface Reference {
identifier: ESTree.Identifier;
from: Scope;
resolved: Variable | null;
writeExpr: ESTree.Node | null;
init: boolean;
isWrite(): boolean;
isRead(): boolean;
isWriteOnly(): boolean;
isReadOnly(): boolean;
isReadWrite(): boolean;
}
type DefinitionType =
| { type: "CatchClause"; node: ESTree.CatchClause; parent: null }
| { type: "ClassName"; node: ESTree.ClassDeclaration | ESTree.ClassExpression; parent: null }
| { type: "FunctionName"; node: ESTree.FunctionDeclaration | ESTree.FunctionExpression; parent: null }
| { type: "ImplicitGlobalVariable"; node: ESTree.Program; parent: null }
| {
type: "ImportBinding";
node: ESTree.ImportSpecifier | ESTree.ImportDefaultSpecifier | ESTree.ImportNamespaceSpecifier;
parent: ESTree.ImportDeclaration;
}
| {
type: "Parameter";
node: ESTree.FunctionDeclaration | ESTree.FunctionExpression | ESTree.ArrowFunctionExpression;
parent: null;
}
| { type: "TDZ"; node: any; parent: null }
| { type: "Variable"; node: ESTree.VariableDeclarator; parent: ESTree.VariableDeclaration };
type Definition = DefinitionType & { name: ESTree.Identifier };
}
// #region SourceCode
export class SourceCode {
text: string;
ast: AST.Program;
lines: string[];
hasBOM: boolean;
parserServices: SourceCode.ParserServices;
scopeManager: Scope.ScopeManager;
visitorKeys: SourceCode.VisitorKeys;
constructor(text: string, ast: AST.Program);
constructor(config: SourceCode.Config);
static splitLines(text: string): string[];
getText(node?: ESTree.Node, beforeCount?: number, afterCount?: number): string;
getLines(): string[];
getAllComments(): ESTree.Comment[];
getAncestors(node: ESTree.Node): ESTree.Node[];
getComments(node: ESTree.Node): { leading: ESTree.Comment[]; trailing: ESTree.Comment[] };
getDeclaredVariables(node: ESTree.Node): Scope.Variable[];
getJSDocComment(node: ESTree.Node): ESTree.Comment | null;
getNodeByRangeIndex(index: number): ESTree.Node | null;
isSpaceBetweenTokens(first: AST.Token, second: AST.Token): boolean;
getLocFromIndex(index: number): ESTree.Position;
getIndexFromLoc(location: ESTree.Position): number;
// Inherited methods from TokenStore
// ---------------------------------
getTokenByRangeStart(offset: number, options?: { includeComments: false }): AST.Token | null;
getTokenByRangeStart(offset: number, options: { includeComments: boolean }): AST.Token | ESTree.Comment | null;
getFirstToken: SourceCode.UnaryNodeCursorWithSkipOptions;
getFirstTokens: SourceCode.UnaryNodeCursorWithCountOptions;
getLastToken: SourceCode.UnaryNodeCursorWithSkipOptions;
getLastTokens: SourceCode.UnaryNodeCursorWithCountOptions;
getTokenBefore: SourceCode.UnaryCursorWithSkipOptions;
getTokensBefore: SourceCode.UnaryCursorWithCountOptions;
getTokenAfter: SourceCode.UnaryCursorWithSkipOptions;
getTokensAfter: SourceCode.UnaryCursorWithCountOptions;
getFirstTokenBetween: SourceCode.BinaryCursorWithSkipOptions;
getFirstTokensBetween: SourceCode.BinaryCursorWithCountOptions;
getLastTokenBetween: SourceCode.BinaryCursorWithSkipOptions;
getLastTokensBetween: SourceCode.BinaryCursorWithCountOptions;
getTokensBetween: SourceCode.BinaryCursorWithCountOptions;
getTokens:
& ((node: ESTree.Node, beforeCount?: number, afterCount?: number) => AST.Token[])
& SourceCode.UnaryNodeCursorWithCountOptions;
commentsExistBetween(
left: ESTree.Node | AST.Token | ESTree.Comment,
right: ESTree.Node | AST.Token | ESTree.Comment,
): boolean;
getCommentsBefore(nodeOrToken: ESTree.Node | AST.Token): ESTree.Comment[];
getCommentsAfter(nodeOrToken: ESTree.Node | AST.Token): ESTree.Comment[];
getCommentsInside(node: ESTree.Node): ESTree.Comment[];
getScope(node: ESTree.Node): Scope.Scope;
isSpaceBetween(
first: ESTree.Node | AST.Token,
second: ESTree.Node | AST.Token,
): boolean;
markVariableAsUsed(name: string, refNode?: ESTree.Node): boolean;
}
export namespace SourceCode {
interface Config {
text: string;
ast: AST.Program;
parserServices?: ParserServices | undefined;
scopeManager?: Scope.ScopeManager | undefined;
visitorKeys?: VisitorKeys | undefined;
}
type ParserServices = any;
interface VisitorKeys {
[nodeType: string]: string[];
}
interface UnaryNodeCursorWithSkipOptions {
<T extends AST.Token>(
node: ESTree.Node,
options:
| ((token: AST.Token) => token is T)
| {
filter: (token: AST.Token) => token is T;
includeComments?: false | undefined;
skip?: number | undefined;
},
): T | null;
<T extends AST.Token | ESTree.Comment>(
node: ESTree.Node,
options: {
filter: (tokenOrComment: AST.Token | ESTree.Comment) => tokenOrComment is T;
includeComments: boolean;
skip?: number | undefined;
},
): T | null;
(
node: ESTree.Node,
options?:
| {
filter?: ((token: AST.Token) => boolean) | undefined;
includeComments?: false | undefined;
skip?: number | undefined;
}
| ((token: AST.Token) => boolean)
| number,
): AST.Token | null;
(
node: ESTree.Node,
options: {
filter?: ((token: AST.Token | ESTree.Comment) => boolean) | undefined;
includeComments: boolean;
skip?: number | undefined;
},
): AST.Token | ESTree.Comment | null;
}
interface UnaryNodeCursorWithCountOptions {
<T extends AST.Token>(
node: ESTree.Node,
options:
| ((token: AST.Token) => token is T)
| {
filter: (token: AST.Token) => token is T;
includeComments?: false | undefined;
count?: number | undefined;
},
): T[];
<T extends AST.Token | ESTree.Comment>(
node: ESTree.Node,
options: {
filter: (tokenOrComment: AST.Token | ESTree.Comment) => tokenOrComment is T;
includeComments: boolean;
count?: number | undefined;
},
): T[];
(
node: ESTree.Node,
options?:
| {
filter?: ((token: AST.Token) => boolean) | undefined;
includeComments?: false | undefined;
count?: number | undefined;
}
| ((token: AST.Token) => boolean)
| number,
): AST.Token[];
(
node: ESTree.Node,
options: {
filter?: ((token: AST.Token | ESTree.Comment) => boolean) | undefined;
includeComments: boolean;
count?: number | undefined;
},
): Array<AST.Token | ESTree.Comment>;
}
interface UnaryCursorWithSkipOptions {
<T extends AST.Token>(
node: ESTree.Node | AST.Token | ESTree.Comment,
options:
| ((token: AST.Token) => token is T)
| {
filter: (token: AST.Token) => token is T;
includeComments?: false | undefined;
skip?: number | undefined;
},
): T | null;
<T extends AST.Token | ESTree.Comment>(
node: ESTree.Node | AST.Token | ESTree.Comment,
options: {
filter: (tokenOrComment: AST.Token | ESTree.Comment) => tokenOrComment is T;
includeComments: boolean;
skip?: number | undefined;
},
): T | null;
(
node: ESTree.Node | AST.Token | ESTree.Comment,
options?:
| {
filter?: ((token: AST.Token) => boolean) | undefined;
includeComments?: false | undefined;
skip?: number | undefined;
}
| ((token: AST.Token) => boolean)
| number,
): AST.Token | null;
(
node: ESTree.Node | AST.Token | ESTree.Comment,
options: {
filter?: ((token: AST.Token | ESTree.Comment) => boolean) | undefined;
includeComments: boolean;
skip?: number | undefined;
},
): AST.Token | ESTree.Comment | null;
}
interface UnaryCursorWithCountOptions {
<T extends AST.Token>(
node: ESTree.Node | AST.Token | ESTree.Comment,
options:
| ((token: AST.Token) => token is T)
| {
filter: (token: AST.Token) => token is T;
includeComments?: false | undefined;
count?: number | undefined;
},
): T[];
<T extends AST.Token | ESTree.Comment>(
node: ESTree.Node | AST.Token | ESTree.Comment,
options: {
filter: (tokenOrComment: AST.Token | ESTree.Comment) => tokenOrComment is T;
includeComments: boolean;
count?: number | undefined;
},
): T[];
(
node: ESTree.Node | AST.Token | ESTree.Comment,
options?:
| {
filter?: ((token: AST.Token) => boolean) | undefined;
includeComments?: false | undefined;
count?: number | undefined;
}
| ((token: AST.Token) => boolean)
| number,
): AST.Token[];
(
node: ESTree.Node | AST.Token | ESTree.Comment,
options: {
filter?: ((token: AST.Token | ESTree.Comment) => boolean) | undefined;
includeComments: boolean;
count?: number | undefined;
},
): Array<AST.Token | ESTree.Comment>;
}
interface BinaryCursorWithSkipOptions {
<T extends AST.Token>(
left: ESTree.Node | AST.Token | ESTree.Comment,
right: ESTree.Node | AST.Token | ESTree.Comment,
options:
| ((token: AST.Token) => token is T)
| {
filter: (token: AST.Token) => token is T;
includeComments?: false | undefined;
skip?: number | undefined;
},
): T | null;
<T extends AST.Token | ESTree.Comment>(
left: ESTree.Node | AST.Token | ESTree.Comment,
right: ESTree.Node | AST.Token | ESTree.Comment,
options: {
filter: (tokenOrComment: AST.Token | ESTree.Comment) => tokenOrComment is T;
includeComments: boolean;
skip?: number | undefined;
},
): T | null;
(
left: ESTree.Node | AST.Token | ESTree.Comment,
right: ESTree.Node | AST.Token | ESTree.Comment,
options?:
| {
filter?: ((token: AST.Token) => boolean) | undefined;
includeComments?: false | undefined;
skip?: number | undefined;
}
| ((token: AST.Token) => boolean)
| number,
): AST.Token | null;
(
left: ESTree.Node | AST.Token | ESTree.Comment,
right: ESTree.Node | AST.Token | ESTree.Comment,
options: {
filter?: ((token: AST.Token | ESTree.Comment) => boolean) | undefined;
includeComments: boolean;
skip?: number | undefined;
},
): AST.Token | ESTree.Comment | null;
}
interface BinaryCursorWithCountOptions {
<T extends AST.Token>(
left: ESTree.Node | AST.Token | ESTree.Comment,
right: ESTree.Node | AST.Token | ESTree.Comment,
options:
| ((token: AST.Token) => token is T)
| {
filter: (token: AST.Token) => token is T;
includeComments?: false | undefined;
count?: number | undefined;
},
): T[];
<T extends AST.Token | ESTree.Comment>(
left: ESTree.Node | AST.Token | ESTree.Comment,
right: ESTree.Node | AST.Token | ESTree.Comment,
options: {
filter: (tokenOrComment: AST.Token | ESTree.Comment) => tokenOrComment is T;
includeComments: boolean;
count?: number | undefined;
},
): T[];
(
left: ESTree.Node | AST.Token | ESTree.Comment,
right: ESTree.Node | AST.Token | ESTree.Comment,
options?:
| {
filter?: ((token: AST.Token) => boolean) | undefined;
includeComments?: false | undefined;
count?: number | undefined;
}
| ((token: AST.Token) => boolean)
| number,
): AST.Token[];
(
left: ESTree.Node | AST.Token | ESTree.Comment,
right: ESTree.Node | AST.Token | ESTree.Comment,
options: {
filter?: ((token: AST.Token | ESTree.Comment) => boolean) | undefined;
includeComments: boolean;
count?: number | undefined;
},
): Array<AST.Token | ESTree.Comment>;
}
}
// #endregion
export namespace Rule {
/**
* TODO: Old style rules are planned to be removed in v9, remove this type then (https://github.com/eslint/rfcs/blob/main/designs/2021-schema-object-rules/README.md)
* @deprecated Use `RuleModule` instead.
*/
type OldStyleRule = RuleModule["create"];
interface RuleModule {
create(context: RuleContext): RuleListener;
meta?: RuleMetaData | undefined;
schema?: RuleMetaData["schema"];
}
type NodeTypes = ESTree.Node["type"];
interface NodeListener {
ArrayExpression?: ((node: ESTree.ArrayExpression & NodeParentExtension) => void) | undefined;
"ArrayExpression:exit"?: ((node: ESTree.ArrayExpression & NodeParentExtension) => void) | undefined;
ArrayPattern?: ((node: ESTree.ArrayPattern & NodeParentExtension) => void) | undefined;
"ArrayPattern:exit"?: ((node: ESTree.ArrayPattern & NodeParentExtension) => void) | undefined;
ArrowFunctionExpression?: ((node: ESTree.ArrowFunctionExpression & NodeParentExtension) => void) | undefined;
"ArrowFunctionExpression:exit"?:
| ((node: ESTree.ArrowFunctionExpression & NodeParentExtension) => void)
| undefined;
AssignmentExpression?: ((node: ESTree.AssignmentExpression & NodeParentExtension) => void) | undefined;
"AssignmentExpression:exit"?: ((node: ESTree.AssignmentExpression & NodeParentExtension) => void) | undefined;
AssignmentPattern?: ((node: ESTree.AssignmentPattern & NodeParentExtension) => void) | undefined;
"AssignmentPattern:exit"?: ((node: ESTree.AssignmentPattern & NodeParentExtension) => void) | undefined;
AwaitExpression?: ((node: ESTree.AwaitExpression & NodeParentExtension) => void) | undefined;
"AwaitExpression:exit"?: ((node: ESTree.AwaitExpression & NodeParentExtension) => void) | undefined;
BinaryExpression?: ((node: ESTree.BinaryExpression & NodeParentExtension) => void) | undefined;
"BinaryExpression:exit"?: ((node: ESTree.BinaryExpression & NodeParentExtension) => void) | undefined;
BlockStatement?: ((node: ESTree.BlockStatement & NodeParentExtension) => void) | undefined;
"BlockStatement:exit"?: ((node: ESTree.BlockStatement & NodeParentExtension) => void) | undefined;
BreakStatement?: ((node: ESTree.BreakStatement & NodeParentExtension) => void) | undefined;
"BreakStatement:exit"?: ((node: ESTree.BreakStatement & NodeParentExtension) => void) | undefined;
CallExpression?: ((node: ESTree.CallExpression & NodeParentExtension) => void) | undefined;
"CallExpression:exit"?: ((node: ESTree.CallExpression & NodeParentExtension) => void) | undefined;
CatchClause?: ((node: ESTree.CatchClause & NodeParentExtension) => void) | undefined;
"CatchClause:exit"?: ((node: ESTree.CatchClause & NodeParentExtension) => void) | undefined;
ChainExpression?: ((node: ESTree.ChainExpression & NodeParentExtension) => void) | undefined;
"ChainExpression:exit"?: ((node: ESTree.ChainExpression & NodeParentExtension) => void) | undefined;
ClassBody?: ((node: ESTree.ClassBody & NodeParentExtension) => void) | undefined;
"ClassBody:exit"?: ((node: ESTree.ClassBody & NodeParentExtension) => void) | undefined;
ClassDeclaration?: ((node: ESTree.ClassDeclaration & NodeParentExtension) => void) | undefined;
"ClassDeclaration:exit"?: ((node: ESTree.ClassDeclaration & NodeParentExtension) => void) | undefined;
ClassExpression?: ((node: ESTree.ClassExpression & NodeParentExtension) => void) | undefined;
"ClassExpression:exit"?: ((node: ESTree.ClassExpression & NodeParentExtension) => void) | undefined;
ConditionalExpression?: ((node: ESTree.ConditionalExpression & NodeParentExtension) => void) | undefined;
"ConditionalExpression:exit"?: ((node: ESTree.ConditionalExpression & NodeParentExtension) => void) | undefined;
ContinueStatement?: ((node: ESTree.ContinueStatement & NodeParentExtension) => void) | undefined;
"ContinueStatement:exit"?: ((node: ESTree.ContinueStatement & NodeParentExtension) => void) | undefined;
DebuggerStatement?: ((node: ESTree.DebuggerStatement & NodeParentExtension) => void) | undefined;
"DebuggerStatement:exit"?: ((node: ESTree.DebuggerStatement & NodeParentExtension) => void) | undefined;
DoWhileStatement?: ((node: ESTree.DoWhileStatement & NodeParentExtension) => void) | undefined;
"DoWhileStatement:exit"?: ((node: ESTree.DoWhileStatement & NodeParentExtension) => void) | undefined;
EmptyStatement?: ((node: ESTree.EmptyStatement & NodeParentExtension) => void) | undefined;
"EmptyStatement:exit"?: ((node: ESTree.EmptyStatement & NodeParentExtension) => void) | undefined;
ExportAllDeclaration?: ((node: ESTree.ExportAllDeclaration & NodeParentExtension) => void) | undefined;
"ExportAllDeclaration:exit"?: ((node: ESTree.ExportAllDeclaration & NodeParentExtension) => void) | undefined;
ExportDefaultDeclaration?: ((node: ESTree.ExportDefaultDeclaration & NodeParentExtension) => void) | undefined;
"ExportDefaultDeclaration:exit"?:
| ((node: ESTree.ExportDefaultDeclaration & NodeParentExtension) => void)
| undefined;
ExportNamedDeclaration?: ((node: ESTree.ExportNamedDeclaration & NodeParentExtension) => void) | undefined;
"ExportNamedDeclaration:exit"?:
| ((node: ESTree.ExportNamedDeclaration & NodeParentExtension) => void)
| undefined;
ExportSpecifier?: ((node: ESTree.ExportSpecifier & NodeParentExtension) => void) | undefined;
"ExportSpecifier:exit"?: ((node: ESTree.ExportSpecifier & NodeParentExtension) => void) | undefined;
ExpressionStatement?: ((node: ESTree.ExpressionStatement & NodeParentExtension) => void) | undefined;
"ExpressionStatement:exit"?: ((node: ESTree.ExpressionStatement & NodeParentExtension) => void) | undefined;
ForInStatement?: ((node: ESTree.ForInStatement & NodeParentExtension) => void) | undefined;
"ForInStatement:exit"?: ((node: ESTree.ForInStatement & NodeParentExtension) => void) | undefined;
ForOfStatement?: ((node: ESTree.ForOfStatement & NodeParentExtension) => void) | undefined;
"ForOfStatement:exit"?: ((node: ESTree.ForOfStatement & NodeParentExtension) => void) | undefined;
ForStatement?: ((node: ESTree.ForStatement & NodeParentExtension) => void) | undefined;
"ForStatement:exit"?: ((node: ESTree.ForStatement & NodeParentExtension) => void) | undefined;
FunctionDeclaration?: ((node: ESTree.FunctionDeclaration & NodeParentExtension) => void) | undefined;
"FunctionDeclaration:exit"?: ((node: ESTree.FunctionDeclaration & NodeParentExtension) => void) | undefined;
FunctionExpression?: ((node: ESTree.FunctionExpression & NodeParentExtension) => void) | undefined;
"FunctionExpression:exit"?: ((node: ESTree.FunctionExpression & NodeParentExtension) => void) | undefined;
Identifier?: ((node: ESTree.Identifier & NodeParentExtension) => void) | undefined;
"Identifier:exit"?: ((node: ESTree.Identifier & NodeParentExtension) => void) | undefined;
IfStatement?: ((node: ESTree.IfStatement & NodeParentExtension) => void) | undefined;
"IfStatement:exit"?: ((node: ESTree.IfStatement & NodeParentExtension) => void) | undefined;
ImportDeclaration?: ((node: ESTree.ImportDeclaration & NodeParentExtension) => void) | undefined;
"ImportDeclaration:exit"?: ((node: ESTree.ImportDeclaration & NodeParentExtension) => void) | undefined;
ImportDefaultSpecifier?: ((node: ESTree.ImportDefaultSpecifier & NodeParentExtension) => void) | undefined;
"ImportDefaultSpecifier:exit"?:
| ((node: ESTree.ImportDefaultSpecifier & NodeParentExtension) => void)
| undefined;
ImportExpression?: ((node: ESTree.ImportExpression & NodeParentExtension) => void) | undefined;
"ImportExpression:exit"?: ((node: ESTree.ImportExpression & NodeParentExtension) => void) | undefined;
ImportNamespaceSpecifier?: ((node: ESTree.ImportNamespaceSpecifier & NodeParentExtension) => void) | undefined;
"ImportNamespaceSpecifier:exit"?:
| ((node: ESTree.ImportNamespaceSpecifier & NodeParentExtension) => void)
| undefined;
ImportSpecifier?: ((node: ESTree.ImportSpecifier & NodeParentExtension) => void) | undefined;
"ImportSpecifier:exit"?: ((node: ESTree.ImportSpecifier & NodeParentExtension) => void) | undefined;
LabeledStatement?: ((node: ESTree.LabeledStatement & NodeParentExtension) => void) | undefined;
"LabeledStatement:exit"?: ((node: ESTree.LabeledStatement & NodeParentExtension) => void) | undefined;
Literal?: ((node: ESTree.Literal & NodeParentExtension) => void) | undefined;
"Literal:exit"?: ((node: ESTree.Literal & NodeParentExtension) => void) | undefined;
LogicalExpression?: ((node: ESTree.LogicalExpression & NodeParentExtension) => void) | undefined;
"LogicalExpression:exit"?: ((node: ESTree.LogicalExpression & NodeParentExtension) => void) | undefined;
MemberExpression?: ((node: ESTree.MemberExpression & NodeParentExtension) => void) | undefined;
"MemberExpression:exit"?: ((node: ESTree.MemberExpression & NodeParentExtension) => void) | undefined;
MetaProperty?: ((node: ESTree.MetaProperty & NodeParentExtension) => void) | undefined;
"MetaProperty:exit"?: ((node: ESTree.MetaProperty & NodeParentExtension) => void) | undefined;
MethodDefinition?: ((node: ESTree.MethodDefinition & NodeParentExtension) => void) | undefined;
"MethodDefinition:exit"?: ((node: ESTree.MethodDefinition & NodeParentExtension) => void) | undefined;
NewExpression?: ((node: ESTree.NewExpression & NodeParentExtension) => void) | undefined;
"NewExpression:exit"?: ((node: ESTree.NewExpression & NodeParentExtension) => void) | undefined;
ObjectExpression?: ((node: ESTree.ObjectExpression & NodeParentExtension) => void) | undefined;
"ObjectExpression:exit"?: ((node: ESTree.ObjectExpression & NodeParentExtension) => void) | undefined;
ObjectPattern?: ((node: ESTree.ObjectPattern & NodeParentExtension) => void) | undefined;
"ObjectPattern:exit"?: ((node: ESTree.ObjectPattern & NodeParentExtension) => void) | undefined;
PrivateIdentifier?: ((node: ESTree.PrivateIdentifier & NodeParentExtension) => void) | undefined;
"PrivateIdentifier:exit"?: ((node: ESTree.PrivateIdentifier & NodeParentExtension) => void) | undefined;
Program?: ((node: ESTree.Program) => void) | undefined;
"Program:exit"?: ((node: ESTree.Program) => void) | undefined;
Property?: ((node: ESTree.Property & NodeParentExtension) => void) | undefined;
"Property:exit"?: ((node: ESTree.Property & NodeParentExtension) => void) | undefined;
PropertyDefinition?: ((node: ESTree.PropertyDefinition & NodeParentExtension) => void) | undefined;
"PropertyDefinition:exit"?: ((node: ESTree.PropertyDefinition & NodeParentExtension) => void) | undefined;
RestElement?: ((node: ESTree.RestElement & NodeParentExtension) => void) | undefined;
"RestElement:exit"?: ((node: ESTree.RestElement & NodeParentExtension) => void) | undefined;
ReturnStatement?: ((node: ESTree.ReturnStatement & NodeParentExtension) => void) | undefined;
"ReturnStatement:exit"?: ((node: ESTree.ReturnStatement & NodeParentExtension) => void) | undefined;
SequenceExpression?: ((node: ESTree.SequenceExpression & NodeParentExtension) => void) | undefined;
"SequenceExpression:exit"?: ((node: ESTree.SequenceExpression & NodeParentExtension) => void) | undefined;
SpreadElement?: ((node: ESTree.SpreadElement & NodeParentExtension) => void) | undefined;
"SpreadElement:exit"?: ((node: ESTree.SpreadElement & NodeParentExtension) => void) | undefined;
StaticBlock?: ((node: ESTree.StaticBlock & NodeParentExtension) => void) | undefined;
"StaticBlock:exit"?: ((node: ESTree.StaticBlock & NodeParentExtension) => void) | undefined;
Super?: ((node: ESTree.Super & NodeParentExtension) => void) | undefined;
"Super:exit"?: ((node: ESTree.Super & NodeParentExtension) => void) | undefined;
SwitchCase?: ((node: ESTree.SwitchCase & NodeParentExtension) => void) | undefined;
"SwitchCase:exit"?: ((node: ESTree.SwitchCase & NodeParentExtension) => void) | undefined;
SwitchStatement?: ((node: ESTree.SwitchStatement & NodeParentExtension) => void) | undefined;
"SwitchStatement:exit"?: ((node: ESTree.SwitchStatement & NodeParentExtension) => void) | undefined;
TaggedTemplateExpression?: ((node: ESTree.TaggedTemplateExpression & NodeParentExtension) => void) | undefined;
"TaggedTemplateExpression:exit"?:
| ((node: ESTree.TaggedTemplateExpression & NodeParentExtension) => void)
| undefined;
TemplateElement?: ((node: ESTree.TemplateElement & NodeParentExtension) => void) | undefined;
"TemplateElement:exit"?: ((node: ESTree.TemplateElement & NodeParentExtension) => void) | undefined;
TemplateLiteral?: ((node: ESTree.TemplateLiteral & NodeParentExtension) => void) | undefined;
"TemplateLiteral:exit"?: ((node: ESTree.TemplateLiteral & NodeParentExtension) => void) | undefined;
ThisExpression?: ((node: ESTree.ThisExpression & NodeParentExtension) => void) | undefined;
"ThisExpression:exit"?: ((node: ESTree.ThisExpression & NodeParentExtension) => void) | undefined;
ThrowStatement?: ((node: ESTree.ThrowStatement & NodeParentExtension) => void) | undefined;
"ThrowStatement:exit"?: ((node: ESTree.ThrowStatement & NodeParentExtension) => void) | undefined;
TryStatement?: ((node: ESTree.TryStatement & NodeParentExtension) => void) | undefined;
"TryStatement:exit"?: ((node: ESTree.TryStatement & NodeParentExtension) => void) | undefined;
UnaryExpression?: ((node: ESTree.UnaryExpression & NodeParentExtension) => void) | undefined;
"UnaryExpression:exit"?: ((node: ESTree.UnaryExpression & NodeParentExtension) => void) | undefined;
UpdateExpression?: ((node: ESTree.UpdateExpression & NodeParentExtension) => void) | undefined;
"UpdateExpression:exit"?: ((node: ESTree.UpdateExpression & NodeParentExtension) => void) | undefined;
VariableDeclaration?: ((node: ESTree.VariableDeclaration & NodeParentExtension) => void) | undefined;
"VariableDeclaration:exit"?: ((node: ESTree.VariableDeclaration & NodeParentExtension) => void) | undefined;
VariableDeclarator?: ((node: ESTree.VariableDeclarator & NodeParentExtension) => void) | undefined;
"VariableDeclarator:exit"?: ((node: ESTree.VariableDeclarator & NodeParentExtension) => void) | undefined;
WhileStatement?: ((node: ESTree.WhileStatement & NodeParentExtension) => void) | undefined;
"WhileStatement:exit"?: ((node: ESTree.WhileStatement & NodeParentExtension) => void) | undefined;
WithStatement?: ((node: ESTree.WithStatement & NodeParentExtension) => void) | undefined;
"WithStatement:exit"?: ((node: ESTree.WithStatement & NodeParentExtension) => void) | undefined;
YieldExpression?: ((node: ESTree.YieldExpression & NodeParentExtension) => void) | undefined;
"YieldExpression:exit"?: ((node: ESTree.YieldExpression & NodeParentExtension) => void) | undefined;
}
interface NodeParentExtension {
parent: Node;
}
type Node = ESTree.Node & NodeParentExtension;
interface RuleListener extends NodeListener {
onCodePathStart?(codePath: CodePath, node: Node): void;
onCodePathEnd?(codePath: CodePath, node: Node): void;
onCodePathSegmentStart?(segment: CodePathSegment, node: Node): void;
onCodePathSegmentEnd?(segment: CodePathSegment, node: Node): void;
onCodePathSegmentLoop?(fromSegment: CodePathSegment, toSegment: CodePathSegment, node: Node): void;
[key: string]:
| ((codePath: CodePath, node: Node) => void)
| ((segment: CodePathSegment, node: Node) => void)
| ((fromSegment: CodePathSegment, toSegment: CodePathSegment, node: Node) => void)
| ((node: Node) => void)
| NodeListener[keyof NodeListener]
| undefined;
}
interface CodePath {
id: string;
initialSegment: CodePathSegment;
finalSegments: CodePathSegment[];
returnedSegments: CodePathSegment[];
thrownSegments: CodePathSegment[];
currentSegments: CodePathSegment[];
upper: CodePath | null;
childCodePaths: CodePath[];
}
interface CodePathSegment {
id: string;
nextSegments: CodePathSegment[];
prevSegments: CodePathSegment[];
reachable: boolean;
}
interface RuleMetaData {
docs?: {
/** Provides a short description of the rule. */
description?: string | undefined;
/**
* TODO: remove this field in next major release of @types/eslint.
* @deprecated no longer used
*/
category?: string | undefined;
/** Whether the rule is enabled in the plugin's `recommended` configuration. */
recommended?: boolean | undefined;
/** Specifies the URL at which the full documentation can be accessed (enabling code editors to provide a helpful link on highlighted rule violations). */
url?: string | undefined;
/**
* TODO: remove this field in next major release of @types/eslint.
* @deprecated use `meta.hasSuggestions` instead
*/
suggestion?: boolean | undefined;
} | undefined;
/** Violation and suggestion messages. */
messages?: { [messageId: string]: string } | undefined;
/**
* Specifies if the `--fix` option on the command line automatically fixes problems reported by the rule.
* Mandatory for fixable rules.
*/
fixable?: "code" | "whitespace" | undefined;
/**
* Specifies the [options](https://eslint.org/docs/latest/developer-guide/working-with-rules#options-schemas)
* so ESLint can prevent invalid [rule configurations](https://eslint.org/docs/latest/user-guide/configuring/rules#configuring-rules).
* TODO: schema is potentially planned to be no longer be optional in v9 (https://github.com/eslint/rfcs/blob/main/designs/2021-schema-object-rules/README.md)
*/
schema?: JSONSchema4 | JSONSchema4[] | undefined;
/** Indicates whether the rule has been deprecated. Omit if not deprecated. */
deprecated?: boolean | undefined;
/** The name of the rule(s) this rule was replaced by, if it was deprecated. */
replacedBy?: readonly string[];
/**
* Indicates the type of rule:
* - `"problem"` means the rule is identifying code that either will cause an error or may cause a confusing behavior. Developers should consider this a high priority to resolve.
* - `"suggestion"` means the rule is identifying something that could be done in a better way but no errors will occur if the code isn’t changed.
* - `"layout"` means the rule cares primarily about whitespace, semicolons, commas, and parentheses,
* all the parts of the program that determine how the code looks rather than how it executes.
* These rules work on parts of the code that aren’t specified in the AST.
*/
type?: "problem" | "suggestion" | "layout" | undefined;
/**
* Specifies whether the rule can return suggestions (defaults to `false` if omitted).
* Mandatory for rules that provide suggestions.
*/
hasSuggestions?: boolean | undefined;
}
interface RuleContext {
id: string;
options: any[];
settings: { [name: string]: any };
parserPath: string;
parserOptions: Linter.ParserOptions;
parserServices: SourceCode.ParserServices;
cwd: string;
filename: string;
physicalFilename: string;
sourceCode: SourceCode;
getAncestors(): ESTree.Node[];
getDeclaredVariables(node: ESTree.Node): Scope.Variable[];
/** @deprecated Use property `filename` directly instead */
getFilename(): string;
/** @deprecated Use property `physicalFilename` directly instead */
getPhysicalFilename(): string;
/** @deprecated Use property `cwd` directly instead */
getCwd(): string;
getScope(): Scope.Scope;
/** @deprecated Use property `sourceCode` directly instead */
getSourceCode(): SourceCode;
markVariableAsUsed(name: string): boolean;
report(descriptor: ReportDescriptor): void;
}
type ReportFixer = (fixer: RuleFixer) => null | Fix | IterableIterator<Fix> | Fix[];
interface ReportDescriptorOptionsBase {
data?: { [key: string]: string };
fix?: null | ReportFixer;
}
interface SuggestionReportOptions {
data?: { [key: string]: string };
fix: ReportFixer;
}
type SuggestionDescriptorMessage = { desc: string } | { messageId: string };
type SuggestionReportDescriptor = SuggestionDescriptorMessage & SuggestionReportOptions;
interface ReportDescriptorOptions extends ReportDescriptorOptionsBase {
suggest?: SuggestionReportDescriptor[] | null | undefined;
}
type ReportDescriptor = ReportDescriptorMessage & ReportDescriptorLocation & ReportDescriptorOptions;
type ReportDescriptorMessage = { message: string } | { messageId: string };
type ReportDescriptorLocation =
| { node: ESTree.Node }
| { loc: AST.SourceLocation | { line: number; column: number } };
interface RuleFixer {
insertTextAfter(nodeOrToken: ESTree.Node | AST.Token, text: string): Fix;
insertTextAfterRange(range: AST.Range, text: string): Fix;
insertTextBefore(nodeOrToken: ESTree.Node | AST.Token, text: string): Fix;
insertTextBeforeRange(range: AST.Range, text: string): Fix;
remove(nodeOrToken: ESTree.Node | AST.Token): Fix;
removeRange(range: AST.Range): Fix;
replaceText(nodeOrToken: ESTree.Node | AST.Token, text: string): Fix;
replaceTextRange(range: AST.Range, text: string): Fix;
}
interface Fix {
range: AST.Range;
text: string;
}
}
// #region Linter
export class Linter {
static version: string;
version: string;
constructor(options?: { cwd?: string | undefined; configType?: "flat" });
verify(
code: SourceCode | string,
config: Linter.Config | Linter.FlatConfig[],
filename?: string,
): Linter.LintMessage[];
verify(
code: SourceCode | string,
config: Linter.Config | Linter.FlatConfig[],
options: Linter.LintOptions,
): Linter.LintMessage[];
verifyAndFix(code: string, config: Linter.Config | Linter.FlatConfig[], filename?: string): Linter.FixReport;
verifyAndFix(
code: string,
config: Linter.Config | Linter.FlatConfig[],
options: Linter.FixOptions,
): Linter.FixReport;
getSourceCode(): SourceCode;
defineRule(name: string, rule: Rule.RuleModule): void;
defineRules(rules: { [name: string]: Rule.RuleModule }): void;
getRules(): Map<string, Rule.RuleModule>;
defineParser(name: string, parser: Linter.ParserModule): void;
}
export namespace Linter {
/**
* The numeric severity level for a rule.
*
* - `0` means off.
* - `1` means warn.
* - `2` means error.
*
* @see [Rule Severities](https://eslint.org/docs/latest/use/configure/rules#rule-severities)
*/
type Severity = 0 | 1 | 2;
/**
* The human readable severity level for a rule.
*
* @see [Rule Severities](https://eslint.org/docs/latest/use/configure/rules#rule-severities)
*/
type StringSeverity = "off" | "warn" | "error";
/**
* The numeric or human readable severity level for a rule.
*
* @see [Rule Severities](https://eslint.org/docs/latest/use/configure/rules#rule-severities)
*/
type RuleLevel = Severity | StringSeverity;
/**
* An array containing the rule severity level, followed by the rule options.
*
* @see [Rules](https://eslint.org/docs/user-guide/configuring/rules)
*/
type RuleLevelAndOptions<Options extends any[] = any[]> = Prepend<Partial<Options>, RuleLevel>;
/**
* The severity level for the rule or an array containing the rule severity level, followed by the rule options.
*
* @see [Rules](https://eslint.org/docs/user-guide/configuring/rules)
*/
type RuleEntry<Options extends any[] = any[]> = RuleLevel | RuleLevelAndOptions<Options>;
/**
* The rules config object is a key/value map of rule names and their severity and options.
*/
interface RulesRecord {
[rule: string]: RuleEntry;
}
/**
* A configuration object that may have a `rules` block.
*/
interface HasRules<Rules extends RulesRecord = RulesRecord> {
rules?: Partial<Rules> | undefined;
}
/**
* ESLint configuration.
*
* @see [ESLint Configuration](https://eslint.org/docs/latest/user-guide/configuring/)
*/
interface BaseConfig<Rules extends RulesRecord = RulesRecord, OverrideRules extends RulesRecord = Rules>
extends HasRules<Rules>
{
$schema?: string | undefined;
/**
* An environment provides predefined global variables.
*
* @see [Environments](https://eslint.org/docs/latest/user-guide/configuring/language-options#specifying-environments)
*/
env?: { [name: string]: boolean } | undefined;
/**
* Extending configuration files.
*
* @see [Extends](https://eslint.org/docs/latest/user-guide/configuring/configuration-files#extending-configuration-files)
*/
extends?: string | string[] | undefined;
/**
* Specifying globals.
*
* @see [Globals](https://eslint.org/docs/latest/user-guide/configuring/language-options#specifying-globals)
*/
globals?: { [name: string]: boolean | "off" | "readonly" | "readable" | "writable" | "writeable" } | undefined;
/**
* Disable processing of inline comments.
*
* @see [Disabling Inline Comments](https://eslint.org/docs/latest/user-guide/configuring/rules#disabling-inline-comments)
*/
noInlineConfig?: boolean | undefined;
/**
* Overrides can be used to use a differing configuration for matching sub-directories and files.
*
* @see [How do overrides work](https://eslint.org/docs/latest/user-guide/configuring/configuration-files#how-do-overrides-work)
*/
overrides?: Array<ConfigOverride<OverrideRules>> | undefined;
/**
* Parser.
*
* @see [Working with Custom Parsers](https://eslint.org/docs/latest/developer-guide/working-with-custom-parsers)
* @see [Specifying Parser](https://eslint.org/docs/latest/user-guide/configuring/plugins#configure-a-parser)
*/
parser?: string | undefined;
/**
* Parser options.
*
* @see [Working with Custom Parsers](https://eslint.org/docs/latest/developer-guide/working-with-custom-parsers)
* @see [Specifying Parser Options](https://eslint.org/docs/latest/user-guide/configuring/language-options#specifying-parser-options)
*/
parserOptions?: ParserOptions | undefined;
/**
* Which third-party plugins define additional rules, environments, configs, etc. for ESLint to use.
*
* @see [Configuring Plugins](https://eslint.org/docs/latest/user-guide/configuring/plugins#configure-plugins)
*/
plugins?: string[] | undefined;
/**
* Specifying processor.
*
* @see [processor](https://eslint.org/docs/latest/user-guide/configuring/plugins#specify-a-processor)
*/
processor?: string | undefined;
/**
* Report unused `ESLint-disable` comments as warning.
*
* @see [Report unused `ESLint-disable` comments](https://eslint.org/docs/latest/user-guide/configuring/rules#report-unused-eslint-disable-comments)
*/
reportUnusedDisableDirectives?: boolean | undefined;
/**
* Settings.
*
* @see [Settings](https://eslint.org/docs/latest/user-guide/configuring/configuration-files#adding-shared-settings)
*/
settings?: { [name: string]: any } | undefined;
}
/**
* The overwrites that apply more differing configuration to specific files or directories.
*/
interface ConfigOverride<Rules extends RulesRecord = RulesRecord> extends BaseConfig<Rules> {
/**
* The glob patterns for excluded files.
*/
excludedFiles?: string | string[] | undefined;
/**
* The glob patterns for target files.
*/
files: string | string[];
}
/**
* ESLint configuration.
*
* @see [ESLint Configuration](https://eslint.org/docs/latest/user-guide/configuring/)
*/
// https://github.com/eslint/eslint/blob/v6.8.0/conf/config-schema.js
interface Config<Rules extends RulesRecord = RulesRecord, OverrideRules extends RulesRecord = Rules>
extends BaseConfig<Rules, OverrideRules>
{
/**
* Tell ESLint to ignore specific files and directories.
*
* @see [Ignore Patterns](https://eslint.org/docs/latest/user-guide/configuring/ignoring-code)
*/
ignorePatterns?: string | string[] | undefined;
/**
* @see [Using Configuration Files](https://eslint.org/docs/latest/user-guide/configuring/configuration-files#using-configuration-files)
*/
root?: boolean | undefined;
}
/**
* Parser options.
*
* @see [Specifying Parser Options](https://eslint.org/docs/user-guide/configuring/language-options#specifying-parser-options)
*/
interface ParserOptions {
/**
* Accepts any valid ECMAScript version number or `'latest'`:
*
* - A version: es3, es5, es6, es7, es8, es9, es10, es11, es12, es13, es14, ..., or
* - A year: es2015, es2016, es2017, es2018, es2019, es2020, es2021, es2022, es2023, ..., or
* - `'latest'`
*
* When it's a version or a year, the value must be a number - so do not include the `es` prefix.
*
* Specifies the version of ECMAScript syntax you want to use. This is used by the parser to determine how to perform scope analysis, and it affects the default
*
* @default 2018
*
* @see https://typescript-eslint.io/architecture/parser/#ecmaversion
*/
ecmaVersion?:
| 3
| 5
| 6
| 7
| 8
| 9
| 10
| 11
| 12
| 13
| 14
| 15
| 2015
| 2016
| 2017
| 2018
| 2019
| 2020
| 2021
| 2022
| 2023
| 2024
| "latest"
| undefined;
/**
* Set to "script" (default) or "module" if your code is in ECMAScript modules.
*
* @default 'script'
*
* @see https://eslint.org/docs/latest/user-guide/configuring/language-options#specifying-parser-options
*/
sourceType?: "script" | "module" | undefined;
/**
* An object indicating which additional language features you'd like to use.
*
* @see https://eslint.org/docs/latest/user-guide/configuring/language-options#specifying-parser-options
* @see https://typescript-eslint.io/architecture/parser#ecmafeatures
*/
ecmaFeatures?: {
globalReturn?: boolean | undefined;
impliedStrict?: boolean | undefined;
jsx?: boolean | undefined;
experimentalObjectRestSpread?: boolean | undefined;
[key: string]: any;
} | undefined;
[key: string]: any;
}
interface LintOptions {
filename?: string | undefined;
preprocess?: ((code: string) => string[]) | undefined;
postprocess?: ((problemLists: LintMessage[][]) => LintMessage[]) | undefined;
filterCodeBlock?: boolean | undefined;
disableFixes?: boolean | undefined;
allowInlineConfig?: boolean | undefined;
reportUnusedDisableDirectives?: boolean | undefined;
}
interface LintSuggestion {
desc: string;
fix: Rule.Fix;
messageId?: string | undefined;
}
interface LintMessage {
column: number;
line: number;
endColumn?: number | undefined;
endLine?: number | undefined;
ruleId: string | null;
message: string;
messageId?: string | undefined;
nodeType?: string | undefined;
fatal?: true | undefined;
severity: Severity;
fix?: Rule.Fix | undefined;
/** @deprecated Use `linter.getSourceCode()` */
source?: string | null | undefined;
suggestions?: LintSuggestion[] | undefined;
}
interface LintSuppression {
kind: string;
justification: string;
}
interface SuppressedLintMessage extends LintMessage {
suppressions: LintSuppression[];
}
interface FixOptions extends LintOptions {
fix?: boolean | undefined;
}
interface FixReport {
fixed: boolean;
output: string;
messages: LintMessage[];
}
type ParserModule =
& ESLint.ObjectMetaProperties
& (
| { parse(text: string, options?: any): AST.Program }
| { parseForESLint(text: string, options?: any): ESLintParseResult }
);
interface ESLintParseResult {
ast: AST.Program;
parserServices?: SourceCode.ParserServices | undefined;
scopeManager?: Scope.ScopeManager | undefined;
visitorKeys?: SourceCode.VisitorKeys | undefined;
}
interface ProcessorFile {
text: string;
filename: string;
}
// https://eslint.org/docs/developer-guide/working-with-plugins#processors-in-plugins
interface Processor<T extends string | ProcessorFile = string | ProcessorFile> extends ESLint.ObjectMetaProperties {
supportsAutofix?: boolean | undefined;
preprocess?(text: string, filename: string): T[];
postprocess?(messages: LintMessage[][], filename: string): LintMessage[];
}
type FlatConfigFileSpec = string | ((filePath: string) => boolean);
interface FlatConfig {
/**
* An array of glob patterns indicating the files that the configuration
* object should apply to. If not specified, the configuration object applies
* to all files
*/
files?: Array<FlatConfigFileSpec | FlatConfigFileSpec[]>;
/**
* An array of glob patterns indicating the files that the configuration
* object should not apply to. If not specified, the configuration object
* applies to all files matched by files
*/
ignores?: FlatConfigFileSpec[];
/**
* An object containing settings related to how JavaScript is configured for
* linting.
*/
languageOptions?: {
/**
* The version of ECMAScript to support. May be any year (i.e., 2022) or
* version (i.e., 5). Set to "latest" for the most recent supported version.
* @default "latest"
*/
ecmaVersion?: ParserOptions["ecmaVersion"];
/**
* The type of JavaScript source code. Possible values are "script" for
* traditional script files, "module" for ECMAScript modules (ESM), and
* "commonjs" for CommonJS files. (default: "module" for .js and .mjs
* files; "commonjs" for .cjs files)
*/
sourceType?: "script" | "module" | "commonjs";
/**
* An object specifying additional objects that should be added to the
* global scope during linting.
*/
globals?: ESLint.Environment["globals"];
/**
* An object containing a parse() or parseForESLint() method.
* If not configured, the default ESLint parser (Espree) will be used.
*/
parser?: ParserModule;
/**
* An object specifying additional options that are passed directly to the
* parser() method on the parser. The available options are parser-dependent
*/
parserOptions?: ESLint.Environment["parserOptions"];
};
/**
* An object containing settings related to the linting process
*/
linterOptions?: {
/**
* A boolean value indicating if inline configuration is allowed.
*/
noInlineConfig?: boolean;
/**
* A severity value indicating if and how unused disable directives should be
* tracked and reported.
*/
reportUnusedDisableDirectives?: Severity | StringSeverity | boolean;
};
/**
* Either an object containing preprocess() and postprocess() methods or a
* string indicating the name of a processor inside of a plugin
* (i.e., "pluginName/processorName").
*/
processor?: string | Processor;
/**
* An object containing a name-value mapping of plugin names to plugin objects.
* When files is specified, these plugins are only available to the matching files.
*/
plugins?: Record<string, ESLint.Plugin>;
/**
* An object containing the configured rules. When files or ignores are specified,
* these rule configurations are only available to the matching files.
*/
rules?: RulesRecord;
/**
* An object containing name-value pairs of information that should be
* available to all rules.
*/
settings?: Record<string, unknown>;
}
}
// #endregion
// #region ESLint
export class ESLint {
static version: string;
static outputFixes(results: ESLint.LintResult[]): Promise<void>;
static getErrorResults(results: ESLint.LintResult[]): ESLint.LintResult[];
constructor(options?: ESLint.Options);
lintFiles(patterns: string | string[]): Promise<ESLint.LintResult[]>;
lintText(
code: string,
options?: { filePath?: string | undefined; warnIgnored?: boolean | undefined },
): Promise<ESLint.LintResult[]>;
getRulesMetaForResults(results: ESLint.LintResult[]): ESLint.LintResultData["rulesMeta"];
calculateConfigForFile(filePath: string): Promise<any>;
isPathIgnored(filePath: string): Promise<boolean>;
loadFormatter(nameOrPath?: string): Promise<ESLint.Formatter>;
}
export namespace ESLint {
type ConfigData<Rules extends Linter.RulesRecord = Linter.RulesRecord> = Omit<Linter.Config<Rules>, "$schema">;
interface Globals {
[name: string]: boolean | "writable" | "readonly" | "off";
}
interface Environment {
globals?: Globals | undefined;
parserOptions?: Linter.ParserOptions | undefined;
}
interface ObjectMetaProperties {
/** @deprecated Use `meta.name` instead. */
name?: string | undefined;
/** @deprecated Use `meta.version` instead. */
version?: string | undefined;
meta?: {
name?: string | undefined;
version?: string | undefined;
};
}
interface Plugin extends ObjectMetaProperties {
configs?: Record<string, ConfigData | Linter.FlatConfig | Linter.FlatConfig[]> | undefined;
environments?: Record<string, Environment> | undefined;
processors?: Record<string, Linter.Processor> | undefined;
rules?: Record<string, Rule.OldStyleRule | Rule.RuleModule> | undefined;
}
interface Options {
// File enumeration
cwd?: string | undefined;
errorOnUnmatchedPattern?: boolean | undefined;
extensions?: string[] | undefined;
globInputPaths?: boolean | undefined;
ignore?: boolean | undefined;
ignorePath?: string | undefined;
// Linting
allowInlineConfig?: boolean | undefined;
baseConfig?: Linter.Config | undefined;
overrideConfig?: Linter.Config | undefined;
overrideConfigFile?: string | undefined;
plugins?: Record<string, Plugin> | undefined;
reportUnusedDisableDirectives?: Linter.StringSeverity | undefined;
resolvePluginsRelativeTo?: string | undefined;
rulePaths?: string[] | undefined;
useEslintrc?: boolean | undefined;
// Autofix
fix?: boolean | ((message: Linter.LintMessage) => boolean) | undefined;
fixTypes?: Array<Rule.RuleMetaData["type"]> | undefined;
// Cache-related
cache?: boolean | undefined;
cacheLocation?: string | undefined;
cacheStrategy?: "content" | "metadata" | undefined;
}
interface LintResult {
filePath: string;
messages: Linter.LintMessage[];
suppressedMessages: Linter.SuppressedLintMessage[];
errorCount: number;
fatalErrorCount: number;
warningCount: number;
fixableErrorCount: number;
fixableWarningCount: number;
output?: string | undefined;
source?: string | undefined;
usedDeprecatedRules: DeprecatedRuleUse[];
}
interface LintResultData {
cwd: string;
rulesMeta: {
[ruleId: string]: Rule.RuleMetaData;
};
}
interface DeprecatedRuleUse {
ruleId: string;
replacedBy: string[];
}
interface Formatter {
format(results: LintResult[], data?: LintResultData): string | Promise<string>;
}
// Docs reference the type by this name
type EditInfo = Rule.Fix;
}
// #endregion
// #region RuleTester
export class RuleTester {
constructor(config?: any);
run(
name: string,
rule: Rule.RuleModule,
tests: {
valid?: Array<string | RuleTester.ValidTestCase> | undefined;
invalid?: RuleTester.InvalidTestCase[] | undefined;
},
): void;
static only(
item: string | RuleTester.ValidTestCase | RuleTester.InvalidTestCase,
): RuleTester.ValidTestCase | RuleTester.InvalidTestCase;
}
export namespace RuleTester {
interface ValidTestCase {
name?: string;
code: string;
options?: any;
filename?: string | undefined;
only?: boolean;
parserOptions?: Linter.ParserOptions | undefined;
settings?: { [name: string]: any } | undefined;
parser?: string | undefined;
globals?: { [name: string]: boolean } | undefined;
}
interface SuggestionOutput {
messageId?: string | undefined;
desc?: string | undefined;
data?: Record<string, unknown> | undefined;
output: string;
}
interface InvalidTestCase extends ValidTestCase {
errors: number | Array<TestCaseError | string>;
output?: string | null | undefined;
}
interface TestCaseError {
message?: string | RegExp | undefined;
messageId?: string | undefined;
type?: string | undefined;
data?: any;
line?: number | undefined;
column?: number | undefined;
endLine?: number | undefined;
endColumn?: number | undefined;
suggestions?: SuggestionOutput[] | undefined;
}
}
// #endregion